| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CC_RASTER_STAGING_BUFFER_POOL_H_ |
| #define CC_RASTER_STAGING_BUFFER_POOL_H_ |
| |
| #include <stdint.h> |
| |
| #include <deque> |
| #include <memory> |
| #include <set> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/synchronization/lock.h" |
| #include "base/time/time.h" |
| #include "base/trace_event/memory_dump_provider.h" |
| #include "cc/output/context_provider.h" |
| #include "cc/resources/resource_provider.h" |
| |
| namespace gpu { |
| namespace gles2 { |
| class GLES2Interface; |
| } |
| } |
| |
| namespace cc { |
| class Resource; |
| class RasterSource; |
| class ResourcePool; |
| |
| struct StagingBuffer { |
| StagingBuffer(const gfx::Size& size, ResourceFormat format); |
| ~StagingBuffer(); |
| |
| void DestroyGLResources(gpu::gles2::GLES2Interface* gl); |
| void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd, |
| ResourceFormat format, |
| bool is_free) const; |
| |
| const gfx::Size size; |
| const ResourceFormat format; |
| std::unique_ptr<gfx::GpuMemoryBuffer> gpu_memory_buffer; |
| base::TimeTicks last_usage; |
| unsigned texture_id; |
| unsigned image_id; |
| unsigned query_id; |
| uint64_t content_id; |
| }; |
| |
| class CC_EXPORT StagingBufferPool |
| : public base::trace_event::MemoryDumpProvider { |
| public: |
| ~StagingBufferPool() final; |
| |
| StagingBufferPool(base::SequencedTaskRunner* task_runner, |
| ContextProvider* worker_context_provider, |
| ResourceProvider* resource_provider, |
| bool use_partial_raster, |
| int max_staging_buffer_usage_in_bytes); |
| void Shutdown(); |
| |
| // Overridden from base::trace_event::MemoryDumpProvider: |
| bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args, |
| base::trace_event::ProcessMemoryDump* pmd) override; |
| |
| std::unique_ptr<StagingBuffer> AcquireStagingBuffer( |
| const Resource* resource, |
| uint64_t previous_content_id); |
| void ReleaseStagingBuffer(std::unique_ptr<StagingBuffer> staging_buffer); |
| |
| private: |
| void AddStagingBuffer(const StagingBuffer* staging_buffer, |
| ResourceFormat format); |
| void RemoveStagingBuffer(const StagingBuffer* staging_buffer); |
| void MarkStagingBufferAsFree(const StagingBuffer* staging_buffer); |
| void MarkStagingBufferAsBusy(const StagingBuffer* staging_buffer); |
| |
| base::TimeTicks GetUsageTimeForLRUBuffer(); |
| void ScheduleReduceMemoryUsage(); |
| void ReduceMemoryUsage(); |
| void ReleaseBuffersNotUsedSince(base::TimeTicks time); |
| |
| std::unique_ptr<base::trace_event::ConvertableToTraceFormat> StateAsValue() |
| const; |
| void StagingStateAsValueInto( |
| base::trace_event::TracedValue* staging_state) const; |
| |
| scoped_refptr<base::SequencedTaskRunner> task_runner_; |
| ContextProvider* const worker_context_provider_; |
| ResourceProvider* const resource_provider_; |
| const bool use_partial_raster_; |
| |
| mutable base::Lock lock_; |
| // |lock_| must be acquired when accessing the following members. |
| using StagingBufferSet = std::set<const StagingBuffer*>; |
| StagingBufferSet buffers_; |
| using StagingBufferDeque = std::deque<std::unique_ptr<StagingBuffer>>; |
| StagingBufferDeque free_buffers_; |
| StagingBufferDeque busy_buffers_; |
| const int max_staging_buffer_usage_in_bytes_; |
| int staging_buffer_usage_in_bytes_; |
| int free_staging_buffer_usage_in_bytes_; |
| const base::TimeDelta staging_buffer_expiration_delay_; |
| bool reduce_memory_usage_pending_; |
| base::Closure reduce_memory_usage_callback_; |
| |
| base::WeakPtrFactory<StagingBufferPool> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(StagingBufferPool); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_RASTER_STAGING_BUFFER_POOL_H_ |